]>
Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 | 2 | /* |
1da177e4 LT |
3 | * S390 version |
4 | * | |
5 | * Derived from "include/asm-i386/elf.h" | |
6 | */ | |
7 | ||
8 | #ifndef __ASMS390_ELF_H | |
9 | #define __ASMS390_ELF_H | |
10 | ||
11 | /* s390 relocations defined by the ABIs */ | |
12 | #define R_390_NONE 0 /* No reloc. */ | |
13 | #define R_390_8 1 /* Direct 8 bit. */ | |
14 | #define R_390_12 2 /* Direct 12 bit. */ | |
15 | #define R_390_16 3 /* Direct 16 bit. */ | |
16 | #define R_390_32 4 /* Direct 32 bit. */ | |
17 | #define R_390_PC32 5 /* PC relative 32 bit. */ | |
18 | #define R_390_GOT12 6 /* 12 bit GOT offset. */ | |
19 | #define R_390_GOT32 7 /* 32 bit GOT offset. */ | |
20 | #define R_390_PLT32 8 /* 32 bit PC relative PLT address. */ | |
21 | #define R_390_COPY 9 /* Copy symbol at runtime. */ | |
22 | #define R_390_GLOB_DAT 10 /* Create GOT entry. */ | |
23 | #define R_390_JMP_SLOT 11 /* Create PLT entry. */ | |
24 | #define R_390_RELATIVE 12 /* Adjust by program base. */ | |
25 | #define R_390_GOTOFF32 13 /* 32 bit offset to GOT. */ | |
26 | #define R_390_GOTPC 14 /* 32 bit PC rel. offset to GOT. */ | |
27 | #define R_390_GOT16 15 /* 16 bit GOT offset. */ | |
28 | #define R_390_PC16 16 /* PC relative 16 bit. */ | |
29 | #define R_390_PC16DBL 17 /* PC relative 16 bit shifted by 1. */ | |
30 | #define R_390_PLT16DBL 18 /* 16 bit PC rel. PLT shifted by 1. */ | |
31 | #define R_390_PC32DBL 19 /* PC relative 32 bit shifted by 1. */ | |
32 | #define R_390_PLT32DBL 20 /* 32 bit PC rel. PLT shifted by 1. */ | |
33 | #define R_390_GOTPCDBL 21 /* 32 bit PC rel. GOT shifted by 1. */ | |
34 | #define R_390_64 22 /* Direct 64 bit. */ | |
35 | #define R_390_PC64 23 /* PC relative 64 bit. */ | |
36 | #define R_390_GOT64 24 /* 64 bit GOT offset. */ | |
37 | #define R_390_PLT64 25 /* 64 bit PC relative PLT address. */ | |
38 | #define R_390_GOTENT 26 /* 32 bit PC rel. to GOT entry >> 1. */ | |
39 | #define R_390_GOTOFF16 27 /* 16 bit offset to GOT. */ | |
40 | #define R_390_GOTOFF64 28 /* 64 bit offset to GOT. */ | |
41 | #define R_390_GOTPLT12 29 /* 12 bit offset to jump slot. */ | |
42 | #define R_390_GOTPLT16 30 /* 16 bit offset to jump slot. */ | |
43 | #define R_390_GOTPLT32 31 /* 32 bit offset to jump slot. */ | |
44 | #define R_390_GOTPLT64 32 /* 64 bit offset to jump slot. */ | |
45 | #define R_390_GOTPLTENT 33 /* 32 bit rel. offset to jump slot. */ | |
46 | #define R_390_PLTOFF16 34 /* 16 bit offset from GOT to PLT. */ | |
47 | #define R_390_PLTOFF32 35 /* 32 bit offset from GOT to PLT. */ | |
48 | #define R_390_PLTOFF64 36 /* 16 bit offset from GOT to PLT. */ | |
49 | #define R_390_TLS_LOAD 37 /* Tag for load insn in TLS code. */ | |
50 | #define R_390_TLS_GDCALL 38 /* Tag for function call in general | |
51 | dynamic TLS code. */ | |
52 | #define R_390_TLS_LDCALL 39 /* Tag for function call in local | |
53 | dynamic TLS code. */ | |
54 | #define R_390_TLS_GD32 40 /* Direct 32 bit for general dynamic | |
55 | thread local data. */ | |
56 | #define R_390_TLS_GD64 41 /* Direct 64 bit for general dynamic | |
57 | thread local data. */ | |
58 | #define R_390_TLS_GOTIE12 42 /* 12 bit GOT offset for static TLS | |
59 | block offset. */ | |
60 | #define R_390_TLS_GOTIE32 43 /* 32 bit GOT offset for static TLS | |
61 | block offset. */ | |
62 | #define R_390_TLS_GOTIE64 44 /* 64 bit GOT offset for static TLS | |
63 | block offset. */ | |
64 | #define R_390_TLS_LDM32 45 /* Direct 32 bit for local dynamic | |
65 | thread local data in LD code. */ | |
66 | #define R_390_TLS_LDM64 46 /* Direct 64 bit for local dynamic | |
67 | thread local data in LD code. */ | |
68 | #define R_390_TLS_IE32 47 /* 32 bit address of GOT entry for | |
69 | negated static TLS block offset. */ | |
70 | #define R_390_TLS_IE64 48 /* 64 bit address of GOT entry for | |
71 | negated static TLS block offset. */ | |
72 | #define R_390_TLS_IEENT 49 /* 32 bit rel. offset to GOT entry for | |
73 | negated static TLS block offset. */ | |
74 | #define R_390_TLS_LE32 50 /* 32 bit negated offset relative to | |
75 | static TLS block. */ | |
76 | #define R_390_TLS_LE64 51 /* 64 bit negated offset relative to | |
77 | static TLS block. */ | |
78 | #define R_390_TLS_LDO32 52 /* 32 bit offset relative to TLS | |
79 | block. */ | |
80 | #define R_390_TLS_LDO64 53 /* 64 bit offset relative to TLS | |
81 | block. */ | |
82 | #define R_390_TLS_DTPMOD 54 /* ID of module containing symbol. */ | |
83 | #define R_390_TLS_DTPOFF 55 /* Offset in TLS block. */ | |
84 | #define R_390_TLS_TPOFF 56 /* Negate offset in static TLS | |
85 | block. */ | |
86 | #define R_390_20 57 /* Direct 20 bit. */ | |
87 | #define R_390_GOT20 58 /* 20 bit GOT offset. */ | |
88 | #define R_390_GOTPLT20 59 /* 20 bit offset to jump slot. */ | |
89 | #define R_390_TLS_GOTIE20 60 /* 20 bit GOT offset for static TLS | |
90 | block offset. */ | |
91 | /* Keep this the last entry. */ | |
92 | #define R_390_NUM 61 | |
93 | ||
ea2a4d3a HC |
94 | /* Bits present in AT_HWCAP. */ |
95 | #define HWCAP_S390_ESAN3 1 | |
96 | #define HWCAP_S390_ZARCH 2 | |
97 | #define HWCAP_S390_STFLE 4 | |
98 | #define HWCAP_S390_MSA 8 | |
99 | #define HWCAP_S390_LDISP 16 | |
100 | #define HWCAP_S390_EIMM 32 | |
101 | #define HWCAP_S390_DFP 64 | |
102 | #define HWCAP_S390_HPAGE 128 | |
103 | #define HWCAP_S390_ETF3EH 256 | |
104 | #define HWCAP_S390_HIGH_GPRS 512 | |
d35339a4 | 105 | #define HWCAP_S390_TE 1024 |
80703617 | 106 | #define HWCAP_S390_VXRS 2048 |
2583b848 MS |
107 | #define HWCAP_S390_VXRS_BCD 4096 |
108 | #define HWCAP_S390_VXRS_EXT 8192 | |
916cda1a | 109 | #define HWCAP_S390_GS 16384 |
ea2a4d3a | 110 | |
7f16d7e7 DH |
111 | /* Internal bits, not exposed via elf */ |
112 | #define HWCAP_INT_SIE 1UL | |
113 | ||
1da177e4 LT |
114 | /* |
115 | * These are used to set parameters in the core dumps. | |
116 | */ | |
1da177e4 | 117 | #define ELF_CLASS ELFCLASS64 |
1da177e4 LT |
118 | #define ELF_DATA ELFDATA2MSB |
119 | #define ELF_ARCH EM_S390 | |
120 | ||
23fefe11 MS |
121 | /* s390 specific phdr types */ |
122 | #define PT_S390_PGSTE 0x70000000 | |
123 | ||
124b51c7 DW |
124 | /* |
125 | * ELF register definitions.. | |
126 | */ | |
127 | ||
128 | #include <asm/ptrace.h> | |
e4371f60 | 129 | #include <asm/compat.h> |
61649881 | 130 | #include <asm/syscall.h> |
124b51c7 DW |
131 | #include <asm/user.h> |
132 | ||
133 | typedef s390_fp_regs elf_fpregset_t; | |
134 | typedef s390_regs elf_gregset_t; | |
135 | ||
63506c41 MS |
136 | typedef s390_fp_regs compat_elf_fpregset_t; |
137 | typedef s390_compat_regs compat_elf_gregset_t; | |
138 | ||
9eb31be3 | 139 | #include <linux/compat.h> |
589ee628 | 140 | #include <linux/sched/mm.h> /* for task_struct */ |
146e4b3c | 141 | #include <asm/mmu_context.h> |
124b51c7 | 142 | |
b020632e MS |
143 | #include <asm/vdso.h> |
144 | ||
145 | extern unsigned int vdso_enabled; | |
146 | ||
1da177e4 LT |
147 | /* |
148 | * This is used to ensure we don't load something for the wrong architecture. | |
149 | */ | |
150 | #define elf_check_arch(x) \ | |
151 | (((x)->e_machine == EM_S390 || (x)->e_machine == EM_S390_OLD) \ | |
152 | && (x)->e_ident[EI_CLASS] == ELF_CLASS) | |
63506c41 MS |
153 | #define compat_elf_check_arch(x) \ |
154 | (((x)->e_machine == EM_S390 || (x)->e_machine == EM_S390_OLD) \ | |
155 | && (x)->e_ident[EI_CLASS] == ELF_CLASS) | |
156 | #define compat_start_thread start_thread31 | |
1da177e4 | 157 | |
23fefe11 MS |
158 | struct arch_elf_state { |
159 | int rc; | |
160 | }; | |
161 | ||
162 | #define INIT_ARCH_ELF_STATE { .rc = 0 } | |
163 | ||
164 | #define arch_check_elf(ehdr, interp, interp_ehdr, state) (0) | |
165 | #ifdef CONFIG_PGSTE | |
166 | #define arch_elf_pt_proc(ehdr, phdr, elf, interp, state) \ | |
167 | ({ \ | |
168 | struct arch_elf_state *_state = state; \ | |
169 | if ((phdr)->p_type == PT_S390_PGSTE && \ | |
170 | !page_table_allocate_pgste && \ | |
171 | !test_thread_flag(TIF_PGSTE) && \ | |
172 | !current->mm->context.alloc_pgste) { \ | |
173 | set_thread_flag(TIF_PGSTE); \ | |
174 | set_pt_regs_flag(task_pt_regs(current), \ | |
175 | PIF_SYSCALL_RESTART); \ | |
176 | _state->rc = -EAGAIN; \ | |
177 | } \ | |
178 | _state->rc; \ | |
179 | }) | |
180 | #else | |
181 | #define arch_elf_pt_proc(ehdr, phdr, elf, interp, state) \ | |
182 | ({ \ | |
183 | (state)->rc; \ | |
184 | }) | |
185 | #endif | |
186 | ||
1da177e4 LT |
187 | /* For SVR4/S390 the function pointer to be registered with `atexit` is |
188 | passed in R14. */ | |
189 | #define ELF_PLAT_INIT(_r, load_addr) \ | |
190 | do { \ | |
191 | _r->gprs[14] = 0; \ | |
192 | } while (0) | |
193 | ||
63506c41 | 194 | #define CORE_DUMP_USE_REGSET |
f1c1174f | 195 | #define ELF_EXEC_PAGESIZE PAGE_SIZE |
1da177e4 | 196 | |
a73dc537 KC |
197 | /* |
198 | * This is the base location for PIE (ET_DYN with INTERP) loads. On | |
199 | * 64-bit, this is raised to 4GB to leave the entire 32-bit address | |
200 | * space open for things that want to use the area for 32-bit pointers. | |
201 | */ | |
202 | #define ELF_ET_DYN_BASE (is_compat_task() ? 0x000400000UL : \ | |
203 | 0x100000000UL) | |
1da177e4 | 204 | |
1da177e4 LT |
205 | /* This yields a mask that user programs can use to figure out what |
206 | instruction set this CPU supports. */ | |
207 | ||
cf8ba7a9 MS |
208 | extern unsigned long elf_hwcap; |
209 | #define ELF_HWCAP (elf_hwcap) | |
1da177e4 | 210 | |
7f16d7e7 DH |
211 | /* Internal hardware capabilities, not exposed via elf */ |
212 | ||
213 | extern unsigned long int_hwcap; | |
214 | ||
1da177e4 LT |
215 | /* This yields a string that ld.so will use to load implementation |
216 | specific libraries for optimization. This is more specific in | |
217 | intent than poking at uname or /proc/cpuinfo. | |
218 | ||
219 | For the moment, we have only optimizations for the Intel generations, | |
220 | but that could change... */ | |
221 | ||
cf8ba7a9 MS |
222 | #define ELF_PLATFORM_SIZE 8 |
223 | extern char elf_platform[]; | |
224 | #define ELF_PLATFORM (elf_platform) | |
1da177e4 | 225 | |
61649881 MS |
226 | #ifndef CONFIG_COMPAT |
227 | #define SET_PERSONALITY(ex) \ | |
228 | do { \ | |
229 | set_personality(PER_LINUX | \ | |
230 | (current->personality & (~PER_MASK))); \ | |
ef280c85 | 231 | current->thread.sys_call_table = \ |
61649881 MS |
232 | (unsigned long) &sys_call_table; \ |
233 | } while (0) | |
234 | #else /* CONFIG_COMPAT */ | |
03e4c49f HC |
235 | #define SET_PERSONALITY(ex) \ |
236 | do { \ | |
237 | if (personality(current->personality) != PER_LINUX32) \ | |
f9783ec8 MS |
238 | set_personality(PER_LINUX | \ |
239 | (current->personality & ~PER_MASK)); \ | |
61649881 | 240 | if ((ex).e_ident[EI_CLASS] == ELFCLASS32) { \ |
03e4c49f | 241 | set_thread_flag(TIF_31BIT); \ |
ef280c85 | 242 | current->thread.sys_call_table = \ |
61649881 MS |
243 | (unsigned long) &sys_call_table_emu; \ |
244 | } else { \ | |
03e4c49f | 245 | clear_thread_flag(TIF_31BIT); \ |
ef280c85 | 246 | current->thread.sys_call_table = \ |
61649881 MS |
247 | (unsigned long) &sys_call_table; \ |
248 | } \ | |
1da177e4 | 249 | } while (0) |
61649881 | 250 | #endif /* CONFIG_COMPAT */ |
1da177e4 | 251 | |
c7e8b2c2 MS |
252 | /* |
253 | * Cache aliasing on the latest machines calls for a mapping granularity | |
254 | * of 512KB. For 64-bit processes use a 512KB alignment and a randomization | |
255 | * of up to 1GB. For 31-bit processes the virtual address space is limited, | |
256 | * use no alignment and limit the randomization to 8MB. | |
257 | */ | |
9eb31be3 HC |
258 | #define BRK_RND_MASK (is_compat_task() ? 0x7ffUL : 0x3ffffUL) |
259 | #define MMAP_RND_MASK (is_compat_task() ? 0x7ffUL : 0x3ff80UL) | |
260 | #define MMAP_ALIGN_MASK (is_compat_task() ? 0 : 0x7fUL) | |
c7e8b2c2 | 261 | #define STACK_RND_MASK MMAP_RND_MASK |
9046e401 | 262 | |
68c5cf5a | 263 | /* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */ |
b020632e MS |
264 | #define ARCH_DLINFO \ |
265 | do { \ | |
266 | if (vdso_enabled) \ | |
267 | NEW_AUX_ENT(AT_SYSINFO_EHDR, \ | |
268 | (unsigned long)current->mm->context.vdso_base); \ | |
269 | } while (0) | |
270 | ||
271 | struct linux_binprm; | |
272 | ||
273 | #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 | |
274 | int arch_setup_additional_pages(struct linux_binprm *, int); | |
275 | ||
1da177e4 | 276 | #endif |